Apollo Justice: Ace Attorney (逆転裁判 4 (Gyakuten Saiban 4)) is the fourth game in the Ace Attorney series and features a new protagonist called Apollo Justice. It is set seven years after the events of the previous game and Phoenix Wright has been disbarred, but it is not until the final case that the events surrounding his disbarment are revealed.

It was the first game in the series to be specifically built from the ground up for the NintendoDS since the previous titles were remakes of Game Boy Advance games.

Klavier Gavin is a prosecutor who faces off against Justice in the latter three episodes and Phoenix Wright in the flashback of his last trial in Turnabout Succession. He became a prosecutor at 17, and unlike previous prosecutors in the series, he is honest and friendly when first introduced. Klavier is also Kristoph Gavin's younger brother and the lead singer of the rock band, the Gavinners.

Ema Skye returns as the detective in charge of the latter three cases in the game and is Apollo Justice's main contact in the police department. She is much moodier and less friendly than she was in Rise from the Ashes, disappointed that she was not assigned to the forensics department. However, the prospect of conducting a forensic investigation excites her just as it did in her younger days. She plays a similar role to Dick Gumshoe from the first three Ace Attorney games.

New gameplay elements

This game features the bracelet, which has the ability to "zoom in on witnesses to gather information regarding them". This is denoted as the perceive function in the game. The bracelet is used in court to spot actions made by the witness that show nervousness. Apollo Justice shouts "Gotcha!" once the player spots such an action.

Demo

A demo was briefly downloadable from Nintendo Wii to Nintendo DS using the Wii's Nintendo Channel or playable from a website. The demo covers a short section of Turnabout Trump (specifically Phoenix Wright's cross examination segment). When the player progresses beyond the content in the demo (after the player first successfully presents evidence), Apollo Justice strains his vocal cords from yelling and loses his voice. After this point the demo ends with Justice being assured that it was only a mock trial, and the player being told to buy the full game to solve the mystery.

Reception

After release in Japan, Gyakuten Saiban 4 has been highly praised, with Famitsu giving it a 9/9/9/9 score (36/40), and selling around 250,000 copies during the first retail week, according to Media-Create. Six weeks after its release, Capcom announced that they had shipped 500,000 copies, accounting for 25% of the series' two million units worldwide.